If you or anyone has a run that's good let me know.

No don't have a extra ecm. And I already checked the ground. Don't know how much more I can change lol

It runs ok when I hold the pedal at a higher rpm.Sometimes it sputters a little but otherwise it's good. I drove the car from Tennessee to Illinois with no problems.

I understand what you are saying and tend to agree bit the harness is brand new. Only ran car once. Does the crankshaft sensor have anything to do with this symptom?

Sorry didn't post that I already replaced the harness with a new one. This is driving me crazy lol

Please anyone any help.Im at a loss on what to do.

I have replaced the icm,tps,crank sensor( hope is in right watched a lot of videos) also replaced cam sensor and wiring harness that goes to all of those. Tach does not work. Car will run at a higher rpm but will not idle. Please help anyone.

Hi new to club. I inherited a 1990 bonneville from MY grandparents who have past. Drove car from Tennessee to Illinois. Car then died. Have a code 42. Found that out after I pulled the dash and replaced ck engine bulb. I have replaced the icm tps camshaft sensor and crankshaft sensor. Hope ...